Because it's a site of heat production, which type of connective tissue is found in animals that hibernate during the cold winter months? a. dense fibrous connective tissue b. white adipose tissue c. reticular fibrous connective tissue d. brown adipose tissue

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.